Add to your order
-
Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary) -
24/7 support when you need it -
Quick, easy, and frustration-free claims
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- BEST VALUE: Protect all your eligible Amazon purchases including: tech, tools, appliances, furniture and more. All for one low monthly price.
- PAST AND FUTURE PROTECTION: Covers malfunctions and failures, plus drops or spills for eligible portable items. Protection begins immediately for eligible purchases from the past 90 days, plus all eligible future purchases (products used commercially are excluded).
- TRUSTED CYBERSECURITY: Digital security with scam detection for emails and texts.
- EASY CLAIMS: File in minutes at www.asurion.com/amazon for fast repair or reimbursement - up to the purchase price.
- NO HIDDEN FEES. CANCEL ANYTIME: Up to $5,000 in total claims per 12-month period. Your plan renews monthly until canceled (coupons applied at checkout don’t renew monthly).
Add to your order
-
Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary) -
24/7 support when you need it -
Quick, easy, and frustration-free claims
Product Protection by Asurion, LLC
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
Product Protection by Asurion, LLC
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
Product Protection by Asurion, LLC
- BEST VALUE: Protect all your eligible Amazon purchases including: tech, tools, appliances, furniture and more. All for one low monthly price.
- PAST AND FUTURE PROTECTION: Covers malfunctions and failures, plus drops or spills for eligible portable items. Protection begins immediately for eligible purchases from the past 90 days, plus all eligible future purchases (products used commercially are excluded).
- TRUSTED CYBERSECURITY: Digital security with scam detection for emails and texts.
- EASY CLAIMS: File in minutes at www.asurion.com/amazon for fast repair or reimbursement - up to the purchase price.
- NO HIDDEN FEES. CANCEL ANYTIME: Up to $5,000 in total claims per 12-month period. Your plan renews monthly until canceled (coupons applied at checkout don’t renew monthly).
Product Protection by Asurion, LLC
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
Buy New
$89.00$89.00
FREE delivery Tuesday, June 16
Ships from: Amazon.com Sold by: Amazon.com
Used - Like New
$72.52$72.52
FREE delivery Monday, June 15
Ships from: Spreetail Sold by: Spreetail
Sorry, there was a problem.
There was an error retrieving your Wish Lists. Please try again.Sorry, there was a problem.
List unavailable.Mr. Heater MH9BX-Massachusetts/Canada approved portable Propane Heater
Learn more
Purchase options and add-ons
| Brand | Mr Heater |
| Special Feature | Portable |
| Color | red |
| Form Factor | Portable Heater |
| Indoor/Outdoor Usage | Indoor, Outdoor |
About this item
- steel, plastic, nickel
- Imported
- 4,000- to 9,000-BTU radiant heater for spaces up to 225 square feet. Approved for outdoor use; clean-burning; nearly 100-percent efficient
- When operating the heater at altitudes over 7,000 FT above sea level the heater may shut off.
- Auto shut-off if tipped over, if pilot light goes out, or if detects low oxygen levels
- Fold-down handle; swivel-out regulator; connects to propane tank (not included). Run Time (Hrs at Min BTU) - 5.6 Hours
- THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY.
Competitively priced item
Frequently bought together

Customers who viewed this item also viewed
Mr. Heater Buddy 4,000-9,000-BTU Indoor-Safe Portable Propane Radiant Heater - GreenAmazon's ChoiceFREE Shipping by AmazonGet it as soon as Tuesday, Jun 16Only 11 left in stock (more on the way).
Mr. Heater Indoor Safe Portable Radiant Buddy Flex HeaterFREE Shipping by AmazonGet it as soon as Tuesday, Jun 16Only 12 left in stock (more on the way).
From the manufacturer
Easy-grip handle
Low & high heat settings
Runs on 1 lb. propane cylinder with swivel regulator
Learn More
|
Learn More
|
Learn More
|
Learn More
|
Learn More
|
|
|---|---|---|---|---|---|
|
Add to Cart
|
Add to Cart
|
||||
| Customer Reviews |
4.5 out of 5 stars 936
|
4.6 out of 5 stars 2,541
|
4.4 out of 5 stars 72
|
— |
4.4 out of 5 stars 131
|
| Price | — no data | $89.00$89.00 | $147.63$147.63 | — no data | — no data |
| BTU | 3,800 BTU | 4,000 / 9,000 BTU | 6,000 / 12,000 BTU | 4,000 / 9,000 / 18,000 BTU | 8,000 - 11,000 BTU |
| Heats up to | 95 sq. ft. | 225 sq. ft. | 300 sq. ft. | 450 sq. ft. | 275 sq. ft. |
| Run time | 5.6 hours | 5.4 hours on low / 2.4 hours on high | 3.6 hours on low / 1.8 hours on high | 10.8 hours on low / 4.8 hours on medium / 2.4 hours on high | 3.5 hours on low / 2 hours on high |
| Ignition | Piezo | Piezo | Electric | Piezo | Electric |
| Tank Size | 1 lb. cylinder | 1 lb. cylinder | 1 lb. cylinder | (2) 1 lb. cylinders | 1 lb. cylinder |
| 20 lb. tank hook up option | no data | ✓ | ✓ | ✓ | ✓ |
| Swivel regulator | no data | ✓ | ✓ | ✓ | ✓ |
| Indoor safe | X | X | X | X | X |
Product guides and documents
Product information
| Special Features | Portable |
|---|---|
| Form Factor | Portable Heater |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Power Source | gas_powered |
| Heating Method | Radiant |
| Recommended Uses For Product | Garage, Patio |
| Mounting Type | Floor Mount |
| Room Type | Garage |
| Heating Coverage | 225 |
| Heating Element | Radiant |
| Heat Output | 9000 British Thermal Units |
| Fuel Type | Propane |
| Smart Home Compatibility | Not Smart Home Compatible |
| Item Dimensions D x W x H | 13.4"D x 15"W x 8.3"H |
|---|---|
| Item Weight | 7.1 Pounds |
Warranty & Support
Feedback
| Brand Name | Mr Heater |
|---|---|
| Model Number | F232050 |
| Warranty Description | 1-Year Limited warranty |
| UPC | 089301320505 |
| Global Trade Identification Number | 00089301320505 |
| Part Number | F232050 |
| Unit Count | 1.0 Count |
| Item Type Name | heater |
| Manufacturer | Enerco Group Inc. |
| Included Components | heater |
| Best Sellers Rank |
|
| ASIN | B000JT7IGQ |
| Customer Reviews |
4.6 out of 5 stars |
| Color | red |
|---|
Product Description
North America's Most Popular Portable Propane Heater! This patented radiant 4,000-9,000 BTU Liquid Propane heater connects directly to a 1 lb. cylinder and is the perfect solution for heating enclosed spaces like large tents up to 200 sq. ft. The expertly engineered size to BTU ratio is augmented with a fold down handle to give this heater maximum output while retaining a minimalistic footprint. A swivel regulator gives you the ability to adapt usage from a disposable cylinder to a remote gas supply with the purchase of a hose and filter. To light the unit, simply rotate the knob to pilot and push. Then the integrated Piezo sparking mechanism will take care of the rest. With the Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut-off you can be sure that you will enjoy years of comfortable indoor safe heat.**Please note when operating the heater at altitudes over 7,000 FT above sea level the heater may shut off.**
Safety and product resources
Safety documents
Top Brand: Mr. Heater
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Generated from the text of customer reviewsSelect to learn more
Reviews with images
Be prepared and ease your worries
Top reviews from the United States
- 5 out of 5 stars
A Must-Have for Cold Weather!
Reviewed in the United States on February 10, 2025I picked up the Mr. Buddy Heater for camping trips and emergency backup heat, and I have to say, it’s one of the best purchases I’ve made. This little heater throws out an impressive amount of heat for its size and works like a charm in cold conditions.
Heat Output & Performance
I was honestly shocked at how well this thing heats up a space. It warms up my tent, garage, and even my small cabin in no time. The heat output is evenly distributed, so I don’t end up with just one super-hot spot while the rest of the space stays cold. On the highest setting, it’s seriously powerful, and I’ve used it in near-freezing temps without any issues.
Portability & Ease of Use
This heater is super portable and lightweight, which makes it easy to take anywhere. The built-in handle is really convenient, and it doesn’t take up much space. The piezo ignition makes starting it up effortless—just turn the knob and press the button, and it fires right up.
Safety Features & Reliability
I love that it has built-in safety features like the oxygen depletion sensor and tip-over shutoff. It gives me peace of mind when using it in enclosed spaces (with proper ventilation, of course). I’ve used it for hours at a time, and it runs reliably without any weird smells or issues.
Final Thoughts
If you need a solid, portable heater that delivers serious warmth, it is worth every penny. It’s easy to use, kicks out a ton of heat, and is perfect for camping, emergencies, or working in cold spaces. I’d definitely recommend it to anyone looking for a reliable and efficient heater!
34 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Good heat, good value
Reviewed in the United States on February 1, 2025I purchased this Mr. Heater unit for camping and emergency backup use. I try to test mechanical objects asap after receiving them to make sure they function correctly. This definitely does function as described, lit easily, intuitive controls; low heat is steady and reliable; high heat is solid. Ran it for several minutes on each setting with a 1lb bottle with no issue. I have a hose/filter to connect a 20lb propane cylinder but have not tested that yet. Will report back if there are any issues. So far, it works as advertised and CAN be used indoors even though the instructions say you should not (likely due to liability issues). There are multiple youtube videos showing people using this heater indoors next to a CO meter and it burns very cleanly with no issues. Overall it's a good value and puts out heat!
8 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Get one !!!
Reviewed in the United States on March 25, 2026Excellent heater. Easy to use and puts out some serious heat. On low the portable propane tank will last a good 6 hours or more. We used this camping in a a tall 10 x 10 tent in the snow, even with ventilating it kept the tent warm and comfortable. Well made heater,solid construction.
3 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Must-have for camping
Reviewed in the United States on January 29, 2026If you need heat without electricity, then this is the way to go. It works indoors and outside. Even though it gets way too hot inside on the lowest setting, it is absolutely a “must-have” for camping in cooler temperatures. Just don’t forget the sensor.
2 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 4 out of 5 stars
Buddy heater
Reviewed in the United States on March 14, 2025No smell, shut off if it tips over, lightweight, easy to start, lasts for a long time, wish the heat output was a little better but overall worth it!
9 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Be prepared and ease your worries
Reviewed in the United States on February 16, 2026She is everything I always hoped she would be! Easy to use and ignited like a charm. The price is excellent and the quality is as expected. It took over a month to receive her, but well worth the wait for the value. In a power outage, we have optional ways to stay warm. We are so pleased, we immediately ordered another one along with racks to hold our stove fan. Thanks for a great product.

She is everything I always hoped she would be! Easy to use and ignited like a charm. The price is excellent and the quality is as expected. It took over a month to receive her, but well worth the wait for the value. In a power outage, we have optional ways to stay warm. We are so pleased, we immediately ordered another one along with racks to hold our stove fan. Thanks for a great product.
One person found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Great value for the cost!
Reviewed in the United States on November 5, 2025Came nicely packaged, but it did have a steel cable that took some doing to get it off.
The on/off knob is a bit tight to get working. The press down to engage the clicker to get the fire started was extremely hard to push. It works as expected, throws off a nice heat. It has hook holes in the back, which allows it to be used in multiple ways. Hang on the wall, or sit on a stand or floor is possible.
Great value for the cost! Comes with a handle to carry when needed. Appears to be made of a mixture of metals and heavy-duty plastic.
5 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Great Emergency Heater!
Reviewed in the United States on February 8, 2026This is the 3rd one I've bought. If you understand the limitations these are great. They will heat a room or tent that's about 144sqft with no problem. At low setting you'll get about 5 hours of heat. They have never failed me and are a joy in those very cold mornings in my tent. However, priming the heater takes quite a few attempts when you first use it, so just be patient. It may take 15-20 attempts at the first lighting.
5 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again
Top reviews from other countries
Ralf Karlsson5 out of 5 starsVärme
Reviewed in Sweden on May 8, 2026En bra värmekälla för tältet tar bort kondens på nolltid!
Sending feedback...Thanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again
Danielle5 out of 5 starsGreat Heater for Emergencies
Reviewed in Canada on December 29, 2023This is a great little emergency heater. I've tried it outside in mild weather in the winter and it works very well. Easy to use, and perfect to have on hand in case the unexpected happens. Very satisfied with this purchase.
Sending feedback...Thanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again
José5 out of 5 starsSuper buen producto
Reviewed in Mexico on January 15, 2026Un buen producto y conectado a un tanque de 20 con filtro y manguera funciona super bien
Sending feedback...Thanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again
Amazon Kunde5 out of 5 starsOptimal!!!
Reviewed in Germany on October 31, 2024Bringt sofort Wärme,steht abends bei mir im Vorzelt im Herbst
Sending feedback...Thanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again
SierraVictoria5 out of 5 starsDeja la chamarra en casa
Reviewed in Mexico on January 1, 2025Ayer, en el camping, cenando al aire libre bajo las estrellas, arropados con suéter y una chamarra encima… Saque este calentadorcito por primera vez… lo conecte al gas y en 5 minutos ya andábamos sin suéter super a gusto.
Es pequeño, esta bien padre el diseño y funciona super bien. Hay un video en youtube en donde el “youtuber” lo arroja de un precipicio, lo sumerge al agua y hasta le habla feo y… sigue funcionando. La calidad se ve buena y da confianza que hasta lo puedes maldecir si se acaba el gas y funcionará después.
Es una excelente adición al kit de “car camping” sobre todo si vas a lugares donde hace frio. La fogata esta rica pero a veces, al momento de cenar esta bueno estar cerca del calorcito.
Sending feedback...Thanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again
Product summary presents key product information
Keyboard shortcut
shift
+
alt
+
opt
+
D
Product Summary: Mr. Heater MH9BX-Massachusetts/Canada approved portable Propane Heater
From Mr. Heater
About this Item
- steel, plastic, nickel
- Imported
- 4,000- to 9,000-BTU radiant heater for spaces up to 225 square feet. Approved for outdoor use; clean-burning; nearly 100-percent efficient
- When operating the heater at altitudes over 7,000 FT above sea level the heater may shut off.
- Auto shut-off if tipped over, if pilot light goes out, or if detects low oxygen levels
- Fold-down handle; swivel-out regulator; connects to propane tank (not included). Run Time (Hrs at Min BTU) - 5.6 Hours
- THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY.
Product Description
Product Guidance & Documents
Feedback
Did you find this product summary feature useful?















